| 单词 | rill mark |
| 释义 | > as lemmasrill mark rill mark n. ΚΠ 1863 J. D. Dana Man. Geol. 94 Rill-marks, mud-cracks, and rain-drop impressions. 1913 A. W. Grabau Princ. Stratigr. xvii. 708 A different type of rill marks is found where small streams debouch upon a flat, sandy or clayey plain. 2004 O. H. Pilkey et al. How to read N. Carolina Beach 21 One way to tell where the water table is on a beach is to look for rill marks, which look like miniature gullies or small streams crossing the beach in the intertidal zone. < as lemmas |
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